How Ro Replace Garage Door Chain

The chain got loose and popped off the gear.

How ro replace garage door chain.

You can just let the cover hang by the wires plugged into it. Disconnect the trolley threaded shaft from the chain by removing the master link clip on spring master link cap and master link bar. Pull the chain cable out of the rail window. There are three phillips screws holding on the garage door opener back cover.

Remove the chain and cable assembly. Pull out the idler pulley bolt and slide the idler pulley out of the rail window. The top two only need to be loosened when you take out the bottom screw the cover will slide down. If your chain is badly corroded you may need to remove the chain from the carriage assembly and soak it in lubricant for a few hours.

Use a step ladder to access the garage door opener s power cord and motor unit. Documenting how i repaired the garage door. Press the wall control button or remote so that the opener completes its close. I am not a professional.

If the chain on your garage door is rusty you need to apply lubricant into it to loosen the corrosion. This should give you room to replace the chain drive module. Lower the motor unit down. Disengage the garage door from the opener by pulling down on the emergency pull cord to release the door trolley from the opener carriage.

How to put a chain back on an automatic garage door opener.